Molex 0527460490 FFC/FPC Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0527460490 is a 4-position FFC/FPC connector with 0.5mm pitch, designed for surface mount, right-angle applications. This connector features bottom contacts, slide lock mechanism, and zero insertion force (ZIF) operation. The part is classified as obsolete, making identification of compatible substitutes essential for ongoing production and maintenance applications. Equivalent parts must maintain identical electrical and mechanical specifications to ensure direct board-level compatibility without redesign.

Substiute Parts

0527460490

MolexIn Stock: 7440527460490 Datasheet

Current PartRFQ

0527460433

MolexIn Stock: 76470527460433 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0527460490 is determined by strict equivalence across the following critical parameters:

• Electrical Compatibility: Voltage rating (50V), current rating (0.5A), and contact material (Phosphor Bronze)
• Mechanical Compatibility: Number of positions (4), pitch (0.5mm), mounting type (surface mount, right angle), contact location (bottom), height above board (2.00mm), and locking mechanism (slide lock)
• Termination & Assembly: Solder termination, FFC/FPC thickness (0.30mm), cable end type (straight, tapered)
• Environmental & Regulatory: Operating temperature range, flammability rating (UL94 V-0), and material composition

The substitute part Molex 0527460433 maintains all critical electrical and mechanical parameters required for direct substitution. Variations in contact finish material, housing/actuator composition, and compliance certifications do not affect functional interchangeability at the board level.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0527460433 is a direct functional equivalent to the 0527460490. Both connectors are classified as obsolete, requiring substitution for new production or maintenance stock replenishment.

Key Selection Factors:

• Electrical & Mechanical Equivalence: The 0527460433 maintains all critical specifications (4 positions, 0.5mm pitch, 50V/0.5A ratings, right-angle surface mount, bottom contacts, 2.00mm height, slide lock, ZIF operation).
• Compliance Advantage: The 0527460433 is ROHS3 compliant, whereas the 0527460490 is RoHS non-compliant. For applications subject to RoHS regulations, the substitute part satisfies compliance requirements.
• Operating Temperature: The 0527460433 supports an extended lower temperature limit (-40°C vs. -20°C), providing broader environmental compatibility without affecting upper temperature performance.
• Contact Finish Variation: The substitute uses Tin Bismuth finish instead of Tin. Both finishes are compatible with standard solder reflow processes and provide equivalent electrical performance for this connector class.
• Inventory Availability: The 0527460433 has significantly higher stock availability (7,561 pcs vs. 726 pcs), supporting production continuity.

Frequently Asked Questions (FAQ)

Q: Can the 0527460433 be used as a direct replacement for the 0527460490 on existing PCBs?

A: Yes. The 0527460433 is mechanically and electrically equivalent. Footprint, mounting orientation, contact pitch, and solder pad layout are identical. No PCB redesign is required.

Q: What is the difference between Tin and Tin Bismuth contact finishes?

A: Both finishes provide equivalent electrical conductivity and solder wettability for standard reflow processes. Tin Bismuth offers improved mechanical strength and reduced whisker formation risk. For this connector application, both finishes are functionally interchangeable.

Q: Why does the 0527460433 have a wider operating temperature range?

A: The 0527460433 is rated -40°C to 85°C, compared to -20°C to 85°C for the 0527460490. This reflects improved material formulation in the substitute part. Applications requiring operation below -20°C benefit from the extended range.

Q: Does the RoHS3 compliance of the 0527460433 affect compatibility?

A: No. RoHS3 compliance indicates the substitute part meets stricter environmental material restrictions. This is an advantage for regulated applications and does not impact electrical or mechanical performance.

Q: Are the packaging formats interchangeable?

A: The 0527460490 packaging format is not specified in the data. The 0527460433 is supplied in Cut Tape (CT) packaging. Verify packaging requirements for your assembly process; both parts are functionally identical regardless of packaging format.

Q: What is the mating cycle rating for these connectors?

A: The 0527460490 mating cycle rating is not specified. The 0527460433 is rated for 20 mating cycles. For applications requiring frequent mating/unmating, the 0527460433 provides documented cycle performance.

Q: Can these connectors be used interchangeably in new designs?

A: Yes. Both connectors are obsolete, but the 0527460433 is the recommended substitute for new designs due to improved compliance, extended temperature range, and superior stock availability.